Quantum Confined Indium-Rich Cluster Lasers with Polarized Dual-Wavelength Output

Abstract

A kind of new quantum confined indium (In)rich cluster (IRC) laser with polarized dual-wavelength output is first proposed and realized. Unlike conventional quantum well/dot lasers, its optical characteristics depend on the special IRC effect-formed quantum confined structure, in which the asymmetric distribution and various sizes of IRCs are generated due to high strains in the indium-based material system. It may lead to a special band structure suitable for synchronous dual-wavelength lasing generation. The mechanism of the laser operation is associated with independent carrier transitions and stimulated emissions from multiple local indium-based active regions, which have various areas and different indium contents due to the IRC effect. The sample uses InGaAs/GaAs/GaAsP as the kernel of lasing medium with the edge-emitting configuration, both facets of which are used as cavity mirrors. The experiment exhibits synchronous dual wavelengths of lasing at 970 and 980 nm in transverse electric (TE) polarization, with a total slope efficiency of 34.6% at a room temperature of 300 K. The result is of great significance in the development of new types of monolithic quantum confined lasers with dual-wavelength and polarization output.

Single‐, Dual‐, Triple, and Quadruple‐Wavelength Surface‐Emitting Lasing in Blue‐Phase Liquid Crystal

“…Multicolor lasers show significant applications in the fields of wavelength division multiplexing communication, [ 1–5 ] highly sensitive optical sensors, [ 6–9 ] medical diagnosis, [ 10 ] laser displays, [ 11,12 ] and precise spectroscopy. [ 13,14 ] Up to now, dual‐wavelength [ 1,6–8,15 ] or dual‐color lasers [ 16–19 ] have been achieved in several resonators such as grating, [ 20–22 ] heterogeneous structures, [ 17,12,23 ] single crystals, [ 3,19,24 ] fibers, [ 2,5,9,25,26 ] metal–organic framework, [ 24,27 ] plasmon resonances, [ 28–30 ] colloidal photonic crystals (PCs), [ 31 ] and cholesteric liquid crystals (CLCs). [ 32–34 ] In this case, dual‐wavelength lasers can simultaneously emit two single‐mode lasing peaks that are separated by several nanometers.…”

“…Multicolor lasers show significant applications in the fields of wavelength division multiplexing communication, [1][2][3][4][5] highly sensitive optical sensors, [6][7][8][9] medical diagnosis, [10] laser displays, [11,12] and precise spectroscopy. [13,14] Up to now, dual-wavelength [1,[6][7][8]15] or dual-color lasers [16][17][18][19] have been achieved in several resonators such as grating, [20][21][22] heterogeneous structures, [17,12,23] single crystals, [3,19,24] fibers, [2,5,9,25,26] metal-organic framework, [24,27] plasmon resonances, [28][29][30] colloidal photonic of 60 µm. [58] Thus, surface-emitting triple-and quadruple-wavelength lasing has the potential to be realized in BPLCs, and relative mechanisms can be systematically investigated.…”

Experimental Detection on Thickness Fluctuation of InxGa1-xAs-Based Indium-Rich Cluster Structure

“…, [8]. This structure is associated with the IRC effect, in which the IRCs were commonly regarded as a sort of defect to avoid for the conventional InGaAs quantum well structure so that its special optical characteristics were neglected in the past [9].…”